1XG0

High resolution crystal structure of phycoerythrin 545 from the marine cryptophyte rhodomonas CS24

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.98	α = 90
b = 82.764	β = 90
c = 89.477	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH		1998-10-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	0.8	NSLS	X8C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	0.966	60.86	89.7	0.057	0.057	13.4	4.4	270473	249226			5.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	0.966	1.02	82.1		0.55	0.55	1.8	4.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1QGW	0.97	60.86	241569	241569	7580	89.45	0.10727	0.10727	0.10669	0.12598	RANDOM	9.253

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.12			-0.07		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.037
r_dihedral_angle_4_deg	13.917
r_dihedral_angle_3_deg	10.881
r_sphericity_free	10.553
r_dihedral_angle_1_deg	5.655
r_scangle_it	3.975
r_sphericity_bonded	3.83
r_scbond_it	3.198
r_mcangle_it	2.564
r_mcbond_it	2.005
r_angle_refined_deg	1.809
r_rigid_bond_restr	1.528
r_mcbond_other	1.123
r_angle_other_deg	1
r_nbd_refined	0.241
r_symmetry_vdw_other	0.233
r_xyhbond_nbd_refined	0.204
r_nbd_other	0.188
r_symmetry_hbond_refined	0.181
r_nbtor_refined	0.176
r_symmetry_vdw_refined	0.15
r_chiral_restr	0.109
r_nbtor_other	0.089
r_bond_refined_d	0.017
r_gen_planes_refined	0.01
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3727
Nucleic Acid Atoms
Solvent Atoms	1040
Heterogen Atoms	359

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
AMoRE	phasing